Perhaps e-mailing an update of their qualification criteria for their vendors to all customers might have a positive effect. Usually the publishing of proactive product/service improvement bulletins is well received by the public.
The turn down exhaust tips were likely a carry over from the Boss 302. I might be the only one that likes the "all business" look of the straight rear valence and dual exhaust with turn downs. :)
Those look like the same clutch parts that I have. I also have the RAM aftermarket flywheel and an aluminum bellhousing from a 1972 Mustang with a 302 and 3 speed toploader. I had no interference with the aluminum bellhousing, which is the same one used on the Boss 302. Not sure about...